$SystemWordLength (Built-in Mathematica Symbol)

$SystemWordLength gives the effective number of bits in raw machine words on the computer system where Mathematica is running.

Algebraic Calculations (Mathematica Overview)

Symbolic Computation Values for Symbols Transforming Algebraic Expressions

Core Language (Mathematica Overview)

"How to" Topics Building Up Calculations Lists

Data Formats in Wolfram|Alpha (Mathematica Overview)

Introduction Exploring Data Formats Interactively Obtaining Data Formats Programmatically

Functional Operations (Mathematica Overview)

Function Names as Expressions Applying Functions Repeatedly Applying Functions to Lists and Other Expressions

Simplifying Algebraic Expressions (Mathematica Tutorial)

There are many situations where you want to write a particular algebraic expression in the simplest possible form. Although it is difficult to know exactly what one means in ...

Systems Interfaces & Deployment (Mathematica Overview)

"How to" Topics Global Aspects of Mathematica Sessions The Internals of Mathematica

Handling Lists, Arrays, and Other ... (Mathematica Tutorial)

MathLink allows you to exchange data of any type with external programs. For more common types of data, you simply need to give appropriate :ArgumentTypes: or :ReturnType: ...

Variant Letters (Mathematica Guide)

In catering to the fine points of mathematical typesetting and notational clarity, Mathematica provides a variety of special variant forms of letters.

Text (Mathematica Import/Export Format)

Plain text file. Universal format for storage and exchange of textual information. Represents text as a sequence of characters and line separators. Stores characters as ...